CN103403514A - Method for calibrating a torquemeter - Google Patents

Method for calibrating a torquemeter Download PDF

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Publication number
CN103403514A
CN103403514A CN2012800104207A CN201280010420A CN103403514A CN 103403514 A CN103403514 A CN 103403514A CN 2012800104207 A CN2012800104207 A CN 2012800104207A CN 201280010420 A CN201280010420 A CN 201280010420A CN 103403514 A CN103403514 A CN 103403514A
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CN
China
Prior art keywords
measuring instrument
reference point
line shaft
torque measuring
torque
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CN2012800104207A
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CN103403514B (en
Inventor
埃德加·海纳尔
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Safran Helicopter Engines SAS
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Turbomeca SA
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
    • G01L25/003—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency for measuring torque
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
    • G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
    • G01L3/101—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means
    • G01L3/104—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving magnetic or electromagnetic means involving permanent magnets

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

The invention relates to a method for calibrating a torquemeter, comprising a power shaft, a reference shaft, a measurement device for measuring the first and second angular deviations between the angular reference points belonging to the power and reference shafts, and a calculation unit for determining, from the first and second angular deviations, a torque value output by the power shaft. Said method comprises: placing the torquemeter in a first state; carrying out first and second measurements in which the first and second angular deviations (alpha[m1], beta[m1]) are determined, and the torque (TQ[m1]) output by the power shaft are measured using a reference torquemeter; placing the torquemeter in a second state; carrying out a second set of measurements in which the first and second angular deviations (alpha[m2], beta[m2]) are determined, and the torque (TQ[m2]) output by the power shaft is measured; placing the torquemeter in a third state; carrying out a third set of measurements in which the first and second angular deviations(alpha[m3], beta[m3]) are determined, and the torque (TQ[m2]) output by the power shaft is measured; placing the torquemeter in a fourth state; carrying out a fourth set of measurements in which the first and second angular deviations (alpha[m4], beta[m4]) are determined, and the torque (TQ[m4]) output by the power shaft is measured; and calibrating the calculation unit on the basis of the first, second, third and fourth sets of measurements.

Description

For the method for calibrating torductor
Background technology
The present invention relates to be used to measuring engine shaft, for example, the device of the moment of torsion that the axle of aircraft turboset transmits.
The present invention relates more specifically to be used to calibrating the method for torsional torque measuring instrument, and this torsional torque measuring instrument preferably is intended to be arranged in the helicopter turboset.
The measurement that will expect the rotary torque of axle is particular importance in the field of copter engine, because essential one of data items of driving that it provides the pilot to consider usually.In case the rotor of helicopter has reached constant speed, the power that the latter provides ad hoc depends on moment of torsion.
Document FR 2,931 552 has described the torductor of measuring based on the axle torsional deflection, and this is out of shape the particularly effect of institute's transmitting torque.
Torsional torque measuring instrument described in the document comprises:
Line shaft, for transmitting the rotary torque around axis, described line shaft provides the first round, and this first round is with the angle reference point of the first and second series;
Axis of reference, it has the first end that is fixed in line shaft one end, with provide the second second end of taking turns, this second is taken turns with the third and fourth serial angle reference point, the angle reference point of the first and the 3rd series is parallel to each other, and second and the angle reference point of Quaternary system row is parallel to each other and with respect to first and the reference point of the 3rd series tilt;
Measurement mechanism, for measure belong to respectively first and two angle reference point of the 3rd serial angle reference point between the first angular deviation, and belong to respectively second and two angle reference point of Quaternary system row angle reference point between the second angular deviation;
Computing unit, based on the first and second measured angular deviations of measurement mechanism, determine the moment of torsion output valve of line shaft for especially.
The moment of torsion that provides in order to calculate line shaft, the data that computing unit must use measurement mechanism to provide, the first temperature of definite axle.In case determined temperature, use the database in the storer that before had been stored in computing unit to determine torque value, this database comprises the torque value corresponding to the several angular distortion values for different temperatures.
Therefore, the torsional torque measuring instrument of prior art needs the temperature knowledge of line shaft, and needs the knowledge of the behavior model of line shaft material.
Purpose of the present invention and general introduction
An object of the present invention is to propose to calibrate the method for the torsional torque measuring instrument of aforementioned type, the torductor of calibration can calculated torque like this, and needn't measure the temperature of line shaft.
Method according to the inventive subject matter:
The torsional torque measuring instrument is placed in the first state, and the moment of torsion output valve of line shaft is positioned at first pre-definite torque range thus, and then the axle of torsional torque measuring instrument is in the first temperature;
Carry out first group of measurement, determine thus the first and second angular deviations, and use the reference torque measuring instrument to measure the moment of torsion output of line shaft;
The torsional torque measuring instrument is placed in the second state, the moment of torsion output valve of line shaft is positioned at second pre-definite torque range thus, second pre-definite torque range is different from first pre-definite torque range, and the axle of torsional torque measuring instrument is in the first temperature basically so;
Carry out second group of measurement, determine thus the first and second angular deviations, and use the reference torque measuring instrument to measure the moment of torsion output of line shaft;
Torductor is placed in the third state, and the moment of torsion output valve of line shaft is positioned at second pre-definite torque range thus, and the axle of torsional torque measuring instrument is brought to the second temperature that is different from the first temperature;
Carry out the 3rd group of measurement, determine thus the first and second angular deviations, and use the reference torque measuring instrument to measure the moment of torsion transmission of line shaft;
Torductor is placed in the 4th state, and the moment of torsion output valve of line shaft is positioned at first pre-definite torque range thus, and the axle of torsional torque measuring instrument is in the second temperature basically;
Carry out the 4th group of measurement, determine thus the first and second angular deviations, and use the reference torque measuring instrument to measure the moment of torsion output of line shaft;
From first, second, third and the 4th group of Measurement and calibration computing unit.
First, second, third and the 4th group measure to allow determining of calibration data, and this is used to calculate such as, the torque value that the torsional torque measuring instrument is measured by computing unit subsequently.
In case be calibrated, the computing unit of torsional torque measuring instrument will and be determined torque value from calibration data from the first and second angular deviations.
Calibration steps carries out especially soon and easily, because it only needs the torque value of four groups of measurements and two temperature stabilizations.Described calibration can be carried out by experienced operating personnel in less than 30 minutes.
In addition, calibration steps of the present invention is preferably implemented when torductor is arranged in turboset.Therefore, calibration is easily carried out on test board, and does not need to dismantle turboset.
Also find than the torductor of prior art, to have better degree of accuracy by the torductor of implementing the inventive method calibration.In practice, the degree of accuracy that obtains is only a little below the degree of accuracy of the reference torque measuring instrument for calibration.
In case be calibrated, the torsional torque measuring instrument just can provide accurate torque value, and needn't determine the temperature of line shaft.As a result, no longer necessary have a behavior model according to the line shaft material of temperature, can calculate the knowledge of the moment of torsion that line shaft transmitted.
Preferred embodiment the second pre-torque range of determining is higher than the first pre-torque range of determining according to one, and the second temperature value is higher than the first temperature value.
Therefore, preferably, measuring for second group is to measure at identical temperature and carry out with first group basically.The 3rd group measure to be to measure and carry out in identical scope with second group.The 4th group measure be basically with the 3rd group, measure at identical temperature and with first group measure in identical torque range and carry out.
By " basically " 5% to 20% the tolerance that preferably means to add deduct.
Preferably, first group is very fast after measuring, and for example first group was carried out second group of measurement after measuring in 1 minute, the temperature of axle like this, and by thermal inertia, not free further increase reaches the increase of moment of torsion.By increasing the speed of turboset, obtain the first and second pre-moment of torsion increases of determining between torque value, the speed that increases turboset causes its heating and rising of axle temperature degree thus.
Similarly, the 3rd group is very fast after measuring, and for example the 3rd group was carried out the 4th group of measurement after measuring in 1 minute, the temperature of axle like this, and by thermal inertia, not free further reduction reaches the minimizing of moment of torsion.
And first pre-determines torque range preferably, but be not ad hoc peak torque that the turboset that is equipped with the torsional torque measuring instrument can produce 0% and 20% between the zone of the first mean value of torque in.
Second pre-determines torque range preferably, but is not ad hoc in the zone of the second mean value of torque, and this second mean value of torque is higher than 80% of described peak torque.
As non-limiting example, the extension of the first torque range adds deduct 10% corresponding to the first mean value.Similarly, as unrestricted embodiment, the extension of the second torque range adds deduct 10% corresponding to the second mean value.
In order to improve the degree of accuracy of calibration, before carrying out the 3rd group of measurement, wait until that the temperature stabilization of torductor axle is in the second temperature.
The inventor has determined that the time of about 15 minutes can prove that the temperature stabilization of enough axles is at the second temperature value.
Advantageously, measure for determining calibration data for first, second, third and the 4th group, this calibration data is stored in the storer of computing unit.
This is rewrite memory preferably, so if necessary, can in the whole term of life of turboset, carry out the calibration of torsional torque measuring instrument several times.
Preferably, first and second to take turns be phonic wheel, and the angle reference point is tooth.
In addition, preferably, by single magnetic sensor, form measurement mechanism.
The torsional torque measuring instrument that the present invention also relates to calibrate, comprise
Line shaft, for transmitting the rotary torque around axis, described line shaft provides the first round, and this first round is with the angle reference point of the first and second series;
Axis of reference, it has the first end that connects line shaft one end, with provide the second second end of taking turns, this second is taken turns with the third and fourth serial angle reference point, the angle reference point of the first and the 3rd series is parallel to each other, and second and the angle reference point of Quaternary system row is parallel to each other and with respect to first and the reference point of the 3rd series tilt;
Measurement mechanism, for measure belong to respectively first and two reference point of the 3rd serial angle reference point between the first angular deviation, and belong to respectively second and two reference point of Quaternary system row angle reference point between the second angular deviation;
Computing unit, be used for based on the first and second measured angular deviations of measurement mechanism, determine the torque value output of line shaft, computing unit comprises storer, with storage by implementing the calibration data that the inventive method was obtained, such as by the determined torque value of computing unit, being the function of the first and second angular deviations and described calibration data.
Finally, the present invention relates to turboset, it comprises the torsional torque measuring instrument according to the inventive method calibration.
Brief description of drawings
By reading below with reference to accompanying drawing, the description of an embodiment of the invention that provide as non-limiting example, will understand the present invention better.Wherein:
Fig. 1 is half axial sectional view of the torsional torque measuring instrument of the calibration according to the present invention.
The relative position of the tooth of the first and second phonic wheels of torductor in Fig. 2 presentation graphs 1, and example the first and second measured angular deviations of the sensor of torductor in Fig. 1.
Fig. 3 example be used to implementing the equipment of calibration steps of the present invention.
Fig. 4 embodiment the step of calibration steps of the present invention; With
Fig. 5 example be equipped with by implementing the turboset of the torsional torque measuring instrument that the inventive method calibrates.
Detailed description of the present invention
Fig. 1 example one of torsional torque measuring instrument 10 preferred embodiment, it will be calibrated by implementing method of the present invention.
Torsional torque measuring instrument 10 comprises hollow line shaft 12, and it is for transmitting rotary torque around its axis A.This moment of torsion is sought the moment of torsion of measuring just.
In the embodiment in figure 1, line shaft 12 is included in the pinion wheel 14 of its first end 12a, and the drive member 16 that is arranged on the second end 12b relative with first end.Apparently, to carry out different assemblings be possible in the end of line shaft.
And line shaft 12, near its first end 12b, with the first phonic wheel, be phonic wheel 18 here, and it is coaxial and comprise a plurality of angle reference point, and the situation here is tooth.
Torsional torque measuring instrument 10 further comprises axis of reference 20, and it axially extends in line shaft 12 inside, and this axis of reference 12 connects line shaft 12 by its first end 20a of the first end 12a near line shaft 12, and its second end 20b is freely.The second end 20b of axis of reference 20,20a is relative with its first end, with the second phonic wheel, is phonic wheel type 22 here, and itself and the first phonic wheel 18 are concentric.The second phonic wheel 22, with large measuring angle reference point, is tooth in this situation, and it radially extends by opening made in line shaft 20.Alternative structure has been described in FR2931552.
In the face of the first and second phonic wheels 18,22, be provided with single magnetic sensor 26, its can work as tooth at every turn in its front by the time produce electric signal, then described signal is sent to computing unit 28, the torque value that the latter is transmitted for definite line shaft 12.
The first phonic wheel 18 comprises the first and second serial angle reference point, i.e. mutual identical First Series tooth D1 and identical second series tooth D2 mutually, and the second phonic wheel 22 comprises the 3rd identical mutually serial tooth D3 and mutual identical Quaternary system row tooth D4.
The first and second phonic wheels are set, and tooth D3, the D4 of tooth D1, the D2 of such the first phonic wheel 18 and the second phonic wheel 22 is angled alternately.
As can see from Figure 2, tooth D1, the D3 of the first and the 3rd series are parallel to each other, and second and tooth D2, the D4 of Quaternary system row is parallel to each other and tilt with respect to the tooth of the first and the 3rd series.
In this Fig. 2, in the positive radial direction OR of line shaft example the distribution of tooth.Therefore, will understand white tooth D1 and D2 and belong to the first phonic wheel, and black tooth belongs to the second phonic wheel.
Tooth D1 and D3 are positioned at angle γ 1 with respect to the axial direction of line shaft, and tooth D2 and D4 are positioned at the angle γ 2 that is different from γ 1.
Magnetic sensor 26 is measurement mechanisms, and it allows to measure the first angular deviation α between two tooth D1, D3 that belong to respectively First Series tooth and second series tooth m.Magnetic sensor 26 also allows to measure the second angular deviation β between two tooth D2, D4 that belong to respectively second series tooth and Quaternary system row tooth m.
The computing unit 28 of programming torsional torque measuring instrument 10, with from the first and second measured angular deviation α of magnetic sensor 26 mAnd β mAnd carry out calculated torque value TQ from the calibration data of storing the storer 29 of computing unit 28.
For example, but whether ad hoc, use following mathematical formulae, obtain torque value TQ:
( 1 ) , TQ ( α m , β m ) = β m - β off + [ ( β m - β off ) - ( α m - α off ) ] * TQ 0 β TQ 0 α - TQ 0 β R 0 + [ ( β m - β off ) - ( α m - α off ) ] * 1 TQ 0 α - TQ 0 β
Wherein:
α mAnd β mThe first and second measured angular deviations of expression sensor;
R 0, α off, β off, TQ0 αAnd TQ0 βIt is calibration data.
This formula is stored in the processor of computing unit.
When completing the calibration steps of the present invention that will describe with reference now to Fig. 3 and Fig. 4, obtain calibration data R 0, α off, β off, TQ0 αAnd TQ0 β.
In case therefore will fully recognize calibration data R 0, α off, β off, TQ0 αAnd TQ0 βBe known, just fully characterized the torsional torque measuring instrument.Therefore, the purpose of calibration is evaluation R 0, α off, β off, TQ0 αAnd TQ0 β.
Fig. 3 example implement the equipment of calibration steps of the present invention, it is calibration console 50 in this case.
Torsional torque measuring instrument 10 is arranged in turboset 52 when calibration, and this engine is placed on calibration console 50.
The end of line shaft 12 connects the reference torque measuring instrument 54 of turboset 52 outsides.
Therefore, when setting torque T Q CBe turboset when desired, reference torque measuring instrument 54 provides the reference measure TQ of the moment of torsion output of line shaft 12 m.To be appreciated that if torductor is not calibrated numerical value TQ mCan accurately corresponding to this, not set numerical value TQ C.
With reference to figure 4, will provide the detailed description that the inventive method is implemented.
The first torsional torque measuring instrument is placed on the first state E1, and wherein the moment of torsion output valve of line shaft 12 is positioned at the first pre-torque range P1 of determining, this first pre-definite torque range P1 is basically between two parties around the first mean value of torque C1.In this first state E1, the line shaft of torsional torque measuring instrument and axis of reference are in the first temperature T 1.In this non-limiting example, the first mean value of torque C1 equals 10% of peak torque that turboset can produce, and the first temperature is about 80 ℃.The limit value of the first scope is approximately 10% of the first mean value of torque that adds deduct in this embodiment.
When torductor is in the first state E1 the time, carry out first group of measurement, wherein by magnetic sensor 26, measure the first and second angular deviation α M1And β M1., and use reference torque measuring instrument 54 to measure the torque T Q of line shaft M1Output.
By increasing setting value TQ CIncrease the speed of turboset, to place torductor at the second state E2(arrow F), wherein the moment of torsion output valve of line shaft 12 is positioned at the second pre-torque range P2 that determines, this second pre-torque range P2 that determines is basically placed in the middle around the second mean value of torque C2 higher than the first mean value of torque C1.Then, carry out rapidly second group of measurement, use thus magnetic sensor 26 to measure the first and second angular deviation α M2And β M2., and use reference torque measuring instrument 54 to measure the torque T Q of line shaft M2Output.Carry out soon second group of measurement, in the second state, the temperature of torsional torque measuring instrument axle keeps equaling the first temperature T 1 basically like this.
In this embodiment, the second mean value C2 is substantially equal to 80% of peak torque that turboset can produce.
What in this embodiment, the limit value of the second scope was positioned at the second mean value of torque approximately adds deduct 10%.
After completing second group of measurement, by the time heating engines, the torsional torque measuring instrument just is brought to third state E3(arrow F2 like this), wherein the axle of torsional torque measuring instrument is in the second temperature T 2 higher than the first temperature T 1, and the moment of torsion output valve of line shaft 12 remains in the second torque range.In other words, torque value keeps being substantially equal to the second mean value of torque C2.
At the axle of waiting for torsional torque measuring instrument 10, after the second temperature T 2 is stablized a few minutes, carry out the 3rd group of measurement, by magnetic sensor, measure the first and second angular deviation α thus M3And β M3, and use reference torque measuring instrument 54 to measure the torque T Q of line shaft M3Output.
Then, reduce the speed of turboset, torductor is taken to the 4th state E4(arrow F3), wherein the moment of torsion output valve of line shaft 12 is positioned at the first torque range P1.Torque value is substantially equal to the first mean value of torque C1, and the axle of torductor is still basically in the second temperature T 2.
When torductor is placed in the 4th state, carry out the 4th group of measurement, by magnetic sensor, measure the first and second angular deviation α thus M4And β M4, and use reference torque measuring instrument 54 to measure the torque T Q of line shaft M4Output.After first pre-definite torque range P1 has reached, carry out soon the 4th group of measurement, the temperature of axle keeps equaling the second temperature T 2 basically like this.
Apparently, the circulation that proposes here is not restrictive, and it can be undertaken or be undertaken by different order by reverse order, as long as carried out four groups of measurements, allows to calculate calibration data and just can.
Then, use first, second, third and the 4th group of Measurement and calibration torsional torque measuring instrument, more specifically computing unit.
In other words, according to first, second, third and the 4th group, measure and determine the such alignment data.
For example:
R 0 = β m 2 - β m 1 TQ m 2 - TQ m 1
After this, calculate angular deviation:
β off＝β m2-TQ m2*R 0
α off＝α m2-TQ m2*R 0
TQ 0 β TQ 0 α - TQ 0 β = B * TQ m 4 - A * TQ m 3 TQ m 3 - TQ m 4
1 TQ 0 α - TQ 0 β = B - A TQ m 3 - TQ m 4
Wherein:
A = β 4 - TQ m 4 * R 0 β 4 - α 4
B = β 3 - TQ m 3 * R 0 β 3 - α 3
Then these calibration data are stored in the storer 29 of alignment unit 28, and computing unit can use them like this, so that with the formula that provides above (1) calculated torque value TQ.
In Fig. 5, example turboset 100, it is equipped with the torsional torque measuring instrument 10 that uses the inventive method to calibrate.

Claims (9)

1. one kind be used to calibrating the method for torsional torque measuring instrument (10), and this torsional torque measuring instrument comprises:
Line shaft (12), for transmitting the rotary torque around axis, described line shaft provides the first round, and this first round is with the angle reference point of the first and second series;
Axis of reference (20), it has the first end that connects line shaft one end, with provide the second second end of taking turns, this second is taken turns with the third and fourth serial angle reference point, the angle reference point of the first and the 3rd series is parallel to each other, and second and the angle reference point of Quaternary system row is parallel to each other and with respect to first and the reference point of the 3rd series tilt;
Measurement mechanism (26), for measure belong to respectively first and two reference point of the 3rd serial angle reference point between the first angular deviation, and belong to respectively second and two reference point of Quaternary system row angle reference point between the second angular deviation;
Computing unit (28), for first and second angular deviations measured according to measurement mechanism, determine the torque value output of line shaft;
A kind of method, wherein:
The torsional torque measuring instrument is placed in the first state, and the moment of torsion output valve of line shaft is positioned at first pre-definite torque range (P1) thus, and then the axle of torsional torque measuring instrument is at the first temperature (T1);
Carry out first group of measurement, determine thus the first and second angular deviation (α M1, β M1), and use reference torque measuring instrument (54) to measure the moment of torsion (TQ of line shaft M1) output;
The torsional torque measuring instrument is placed in the second state, the moment of torsion output valve of line shaft is positioned at second pre-definite torque range (P2) thus, second pre-definite torque range is different from first pre-definite torque range, and the axle of torsional torque measuring instrument is at the first temperature (T1) basically so;
Carry out second group of measurement, determine thus the first and second angular deviation (α M2, β M2), and use reference torque measuring instrument (54) to measure the moment of torsion (TQ of line shaft M2) output;
Torductor is placed in the third state, and the moment of torsion output valve of line shaft is positioned at second pre-definite torque range (P2) thus, and the axle of torsional torque measuring instrument is brought to the second temperature (T2) that is different from the first temperature (T1);
Carry out the 3rd group of measurement, determine thus the first and second angular deviation (α M3, β M3), and use reference torque measuring instrument (54) to measure the moment of torsion (TQ of line shaft M3) output;
Torductor is placed in the 4th state, and the moment of torsion output valve of line shaft is positioned at first pre-definite torque range (P1) thus, and the axle of torsional torque measuring instrument is at the second temperature (T2) basically;
Carry out the 4th group of measurement, determine thus the first and second angular deviation (α M4, β M4), and use reference torque measuring instrument (54) to measure the moment of torsion (TQ of line shaft M4) output;
According to first, second, third and the 4th group of Measurement and calibration computing unit.
According to claim 1 be used to calibrating the method for torsional torque measuring instrument, wherein second pre-determines that torque range (P2) determines torque range (P1) in advance higher than first, and the second temperature (T2) is higher than the first temperature (T1).
According to claim 1 and 2 be used to calibrating the method for torsional torque measuring instrument, wherein carry out the 3rd group measure before, the temperature of the axle of torductor has been stabilized in the second temperature (T2) by the time.
according to claim 1 to 3 arbitrary claim be used to calibrating the method for torsional torque measuring instrument, wherein measure the calibration data of storing for the storer (29) of determining computing unit (28) for first, second, third and the 4th group.
according to claim 1 to 4 arbitrary claim be used to calibrating the method for torsional torque measuring instrument, wherein torsional torque measuring instrument (10) is arranged in turboset (100), and reference torque measuring instrument (54) is arranged on outside turboset.
according to claim 1 to 5 arbitrary claim be used to calibrating the method for torsional torque measuring instrument, wherein first and second take turns (18,22) be phonic wheel and wherein angle reference point (D1, D2, D3, D4) be tooth.
according to claim 1 to 6 arbitrary claim be used to calibrating the method for torsional torque measuring instrument, wherein by single magnetic sensor (26), form measurement mechanism.
8. the torsional torque measuring instrument (10) of a calibration comprises:
Line shaft (12), for transmitting the rotary torque around axis (A), described line shaft provides the first round (18), and this first round is with the angle reference point (D1, D2) of the first and second series;
Axis of reference (20), it has the first end (20a) that connects line shaft one end, with provide the second second end of taking turns (22), this second is taken turns with the third and fourth serial angle reference point (D3, D4), (D1, D3) is parallel to each other for the angle reference point of the first and the 3rd series, and second and the angle reference point (D2, D4) of Quaternary system row is parallel to each other and with respect to first and the reference point of the 3rd series tilt;
Measurement mechanism (26), for measure belong to respectively first and two reference point of the 3rd serial angle reference point between the first angular deviation (α m), and belong to respectively second and two reference point of Quaternary system row angle reference point between the second angular deviation (β m);
Computing unit (28), for first and second angular deviations measured according to measurement mechanism, determine torque value (TQ) output of line shaft (12); Described torsional torque measuring instrument (10) be characterised in that computing unit (28) comprise storer (29) with storage by implementing the calibration data that method was obtained of arbitrary claim according to claim 1 to 7, and be further characterized in that such as by the determined torque value of computing unit (TQ), being the function of the first and second angular deviations and calibration data.
9. a turboset (100), it comprises the torsional torque measuring instrument (10) of calibrating according to claim 8.
CN201280010420.7A 2011-03-02 2012-02-23 For calibrating the method for torsional torque measuring instrument Active CN103403514B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR1151682A FR2972256B1 (en) 2011-03-02 2011-03-02 METHOD OF CALIBRATING A TORSION COUPLER
FR1151682 2011-03-02
PCT/FR2012/050383 WO2012117187A1 (en) 2011-03-02 2012-02-23 Method for calibrating a torquemeter

Publications (2)

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CN103403514A true CN103403514A (en) 2013-11-20
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FR3026437A1 (en) * 2014-09-26 2016-04-01 Airbus Helicopters METHOD FOR STOPPING A ROTATORY ENGINE IN OVERSPEED, ASSOCIATED SYSTEM AND ROTATORY
FR3046841B1 (en) * 2016-01-20 2018-02-02 Safran Helicopter Engines TORSION COUPLEMETER

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